Quantitative Aptitude Geometry Circles, Chords and Tangents

A circle is inscribed in a triangle ABC. It touches the sides AB and AC at M and N respectively. If O is the centre of the circle and ∠A = 70°, then what is ∠MON equal to?

1

90°

2

100°

3

110°

4

120°

5

Not Attempted

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